LEGO Nexo Knights (2015)

S1E8 The Black Knight

In a time of peril, the Knights of Knighton find themselves unable to protect the outer villages from the threats posed by Jestro and his monstrous minions. Amidst this turmoil, a mysterious figure known as the Black Knight emerges to confront these villains. His true identity remains shrouded in secrecy, leaving the Knights to wonder whether he is a potential ally in their fight or a dangerous adversary with his own agenda.